To answer this question, you need to understand the layers of the OSI model and their functions.
The OSI model is a conceptual framework that standardizes the functions of a communication system into seven layers. Each layer has a specific role and interacts with the layers above and below it.
The correct answer is A) data link.
The data link layer is responsible for the packaging of bits into frames. It takes the raw stream of bits from the physical layer and organizes them into frames, which can be transmitted over the network. The data link layer also adds necessary control information, such as destination and source addresses, to the frames.
Option B) transport is incorrect because the transport layer is responsible for the reliable delivery of data between end systems, not the packaging of bits into frames.
Option C) physical is incorrect because the physical layer is responsible for the transmission of raw bits over the physical medium, not the packaging of bits into frames.
Option D) presentation is incorrect because the presentation layer is responsible for data formatting and encryption, not the packaging of bits into frames.
Option E) application is incorrect because the application layer is responsible for providing services to the end-user applications, not the packaging of bits into frames.
Therefore, the correct answer is A) data link because it is the layer that packages bits into frames.